Tuesday, November 29, 2016

DAS Survey -Telecom






Before Survey we need these report:
After Implementation Diagram
Trucking diagram
Link Budget
Need to be check during Survey:
1. Site name
2. Lat/Long
3. Macro Site-If proposed then check pole
4. no. of Floor
5. Occuparacy details means Shop name,or any room name
6.Cover details which is covered by our Equipment
7.Indoor rack space
8.Power taping-32ams

After Survey just send the report..As collected survey report planning team will decide no. of antenna,RRH etc..

Why Reliance Jio not connected with Multiband combiner:
Because there is a lot of loss through this multiband combiner & Signal passes through Co-axial cable but we are using CIPRI Optical cable. In CIPRI cable loss is less compare to  co-axial cable. As per guide lines of NHQ output from antenna should be 12db ,if we will use Multiple operator combiner then due to co-axial cable ,we can not get 12 db output through antenna.

Omni Antenna: 360 degree /covers 10-30 meters
Patch Antenna: 120 degree
EIRP: BTS output power-Splitter loss- coupler loss-connector loss-cable loss
+Antenna gain

Active & Passive:
Passive: Passive device will not generate anything….Only input or output
Active: